NYC Stop and Frisk program has been ruled unconstitutional for the most part. The NYPD has been instructed to use a small camera and be reviewed by a Federal Rep. This video looks into both view points.
Judge Rejects Stop & Frisk Policy: http://www.nytimes.com/2013/08/13/nyregion/stop-and-frisk-practice-violated-rights-judge-rules.html?pagewanted=all&_r=0
FBI Crime Stats: http://www.fbi.gov/about-us/cjis/ucr/crime-in-the-u.s/2011/crime-in-the-u.s.-2011/tables/table-43
Drop in Crime Rate: http://tinyurl.com/lczwg7u
NY Census Data: http://quickfacts.census.gov/qfd/states/36/3651000.html
NYCLU Stop and Frisk Data: http://www.nyclu.org/content/stop-and-frisk-data